Two checkboxes to each item of JList

Question

I want to take two checkboxes to each item of Jlist
and depending upon the checkbox state i want to add
that item in a defferent Jlist

Answer 1

You don't need any invisible nodes for that. Just create a class that can hold both the id and name, and which will return the name from the toString() method:
public class Pair {
  private String id;
  private String name;
  public Pair(String i, String n) {
    id = i;
    name = n;
  public String getId() { return id; }
  public String getName() { return name; }
  public String toString() { return getName(); } // used by JTree to display the name
}Of course, id and name can be other objects than Strings.